fix #205: fixed for both TotalPower and XArcos (#207)

* fix #205: fixed for both TotalPower and XArcos

* Fix #125, removed some remaining references to `THeaderRecord` structure and objects.
Another reference can be found in XarcosThread.h, used in XarcosThread.cpp, but I believe the methods that uses it are no longer needed. Also, a reference can be found in Common/Servers/HolographyBackend but I'm leaving it there because the component does not build correctly (see #208).

* Roach updated with latest TRUNK modifications.